Cortelco 123 Compact Loud External Phone Ringer

- Cortelco loud external ringer
- Small compact design
- Visual ring indicator
- Indicator lights up red during incoming call
- Wall Mountable
- Low/high ringer volume control
- Phone and line jack
- Telephone line powered (No batteries or AC Power needed
- Dimensions: 3 Inch Diameter
- Color: BLACK

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